| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 543 |
56.4%
|
| 2 | 1 | 106 |
11%
|
| 3 | 2 | 41 |
4.3%
|
| 4 | 3 | 10 |
1%
|
| 5 | 4 | 1 |
0.1%
|
| 6 | 5 | 1 |
0.1%
|
| 7 | 7 | 1 |
0.1%
|
| Missing value | 259 |
26.9%
|